Ballycastle Weather in September

What's the weather like in Ballycastle (N Ireland) in September 2024?

The climate in Ballycastle during September can be summarized as mild and damp.

September is in the fall / autumn in Ballycastle and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 9°C (48°F) is normal.

Ballycastle weather averages (imperial / metric)
Daytime temperature 15°C 58.9°F
Nightly temperature 8.7°C 47.6°F
Average temperature 11.8°C 53.2°F
Daily sunshine 3.8 hrs
Avg rainfall 113 mm 4.5 ins
Rainy days 20 days
Sea temperature 14°C 57.2°F
Humidity 90%
Windspeed 21.6kph 14 mph

On average September is the 5th wettest month of the year in Ballycastle with around 113mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.8 hours of sunshine per day.

September temperatures in Ballycastle

Ballycastle average temperature in September

September rainfall

Ballycastle average rain in September

September hourly sunshine

Ballycastle average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ballycastle in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Ballycastle weather stats

Ballycastle weather statistics
Hottest month: July 16.6°C 61.9°F
Driest month: May 64mm 2.5ins
Sunniest month: May 6.5hrs
Coldest month: February 6.4°C 43.5°F
Wettest month: October 128mm 5ins
Map showing location of Ballycastle (55.20444, -6.24298) Ballycastle map pin © Google

Locations nearby

Top United Kingdom locations